Oil temp sensor wire |
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Oil temp sensor wire |
Nate |
Oct 29 2014, 11:41 PM
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#1
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Newbie Group: Members Posts: 47 Joined: 21-August 14 From: Southern California Member No.: 17,807 Region Association: Southern California |
Hello everyone,
I know there have been several threads in the past about this and they all seem to say the same thing. Something along the lines of, "oil temp wire runs along front of engine, up through the tins and plugs in to a connection near the oil cooler." I'm thinking I'm missing something totally obvious but I can't, for the life of me, find where the oil temp sensor plugs in. I've looked at these two wiring diagrams but they don't show anywhere for the oil temp sensor. (IMG:http://www.914world.com/bbs2/uploads_offsite/i1292.photobucket.com-17807-1414647709.1.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/i1292.photobucket.com-17807-1414647709.2.jpg) Can anyone help me?! This damn thing is driving me mad. |
Markl |
Oct 30 2014, 12:29 AM
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#2
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Member Group: Members Posts: 75 Joined: 14-September 09 From: Colorado Member No.: 10,802 Region Association: Rocky Mountains |
It's installed in a plate (AKA taco plate) on the bottom of the engine case, driver's side front. The sensor itself is somewhat hidden, with the female? spade connector facing the front of the car.
The green/black wire does run across the bottom to a hole under the battery, where it connects to a wire exiting the main harness. Nothing to do with the relay board. Not all cars had temp sensors installed - they came with center consoles and late '75 and '76 cars with a temp gauge in the gas/brake light gauge. |
cary |
Oct 30 2014, 12:54 AM
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#3
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Advanced Member Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest |
What he said ...............
It's right beside the Hell hole. Single wire clear plastic connector with a male blade inside. |
Nate |
Oct 30 2014, 01:03 AM
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#4
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Newbie Group: Members Posts: 47 Joined: 21-August 14 From: Southern California Member No.: 17,807 Region Association: Southern California |
Thanks guys. I had been looking at the ecu and relay harnesses the whole time. Found it finally. I'm pretty sure I would have found it much earlier if someone hadn't cut the wire with about an inch left sticking out of the loom...
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era vulgaris |
Oct 30 2014, 10:44 AM
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#5
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J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
Is the wire for the temp sensor a feature of all 914 looms, or was it only added to cars that came with a temp gauge from the factory?
I picked up a combo gauge with temp and the taco plate/sensor assembly a while back. I've been meaning to add it to my car but haven't gotten around to it yet. If there's already wiring in place, it'll be nice not to have to run new wires. |
Dave_Darling |
Oct 30 2014, 11:04 AM
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#6
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914 Idiot Group: Members Posts: 14,981 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
It should be in all 73+ main wiring harnesses. It probably would have been more expensive for them to have a separate version for cars equipped with the gauge, so the wire should be there in all 73+ cars.
--DD |
malcolm2 |
Oct 30 2014, 12:04 PM
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#7
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Advanced Member Group: Members Posts: 2,745 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
the TACO plate is a series of plates with a hole in the center and the sensor threads in at an angle. there is a cover too that keep the wind off the sensor. on the exposed end of the sensor there is a male connection. the female is on the wire that winds it's way to a green wire that is in the main harness and under the battery.
From there I guess it goes thru the tunnel and may stop there for attachment to a center console gauge in the center console gauge wire harness. I am working on getting the combo fuel / temp gauge working that goes in the dash, so I assume I will run a wire from there or from the one under the battery to the "G" terminal on the temp part of my gauge. Google VW TYPE 4TACO PLATE and look for pictures. Check some of my recent topics. I found a great picture I think Mark or McMark took.... I get them confused. I need to meet these people face to face. (IMG:style_emoticons/default/aktion035.gif) |
Mark Henry |
Oct 30 2014, 12:31 PM
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#8
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
It should be in all 73+ main wiring harnesses. It probably would have been more expensive for them to have a separate version for cars equipped with the gauge, so the wire should be there in all 73+ cars. --DD (IMG:style_emoticons/default/agree.gif) For sure on a '74, all of it was there including the console wiring in the cab and the fog light wiring. My car had none of these options but the wiring was all there. |
JeffBowlsby |
Oct 30 2014, 12:37 PM
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#9
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914 Wiring Harnesses Group: Members Posts: 8,486 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
it needs to be said that the relay board diagram above does not apply to every year...mosre specifically the wiring that attaches to it varies from year to year.
Re: the oil temp gauge wire: 1970-71 914s include the green/black wire in the ignition harness, which requires a separate wire that goes down to the temp sender at the bottom of the engine. The circuit then routes though the ignition harness to the relay board, then through the chassis harness to the dash gauge area. 1972 914s have no factory provision for an oil temp gauge. 1973-76 cars require the wire from the temp sender to the single wire box connector in the chassis harness under the battery, which routes to a connector daylighting above the center tunnel for the center console gauges, including the oil temp gauge. A separate console gauge harness connects the center console gauges. 1973-76 914s without a center console gauge that have an oil temp gauge in their combo gauge, require an additional single green/black wire from the center console connector to the dash gauge area. So there are three different single green/black wires - one for the 1970-71, one for the 1973-76 with the center console, and one for the 1973-76 cars without the console, but with a dash combo gauge. |
Nate |
Oct 30 2014, 03:29 PM
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#10
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Newbie Group: Members Posts: 47 Joined: 21-August 14 From: Southern California Member No.: 17,807 Region Association: Southern California |
Thanks for the clarity Jeff. Mine is a 73 with the center console with temp gauge. I hooked up the temp sender to the wire in the harness under the battery. No dice though. Gonna have to do a couple tests.
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